scholarly journals Virtual Router Design and Modeling for Future Networks with QoS Guarantees

Electronics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1139
Author(s):  
Mykola Beshley ◽  
Natalia Kryvinska ◽  
Halyna Beshley ◽  
Oleg Yaremko ◽  
Julia Pyrih
Keyword(s):  
Quality Of Service ◽  
Dynamic Reconfiguration ◽  
Future Internet ◽  
End Users ◽  
Mathematical Representation ◽  
Optimal Parameters ◽  
Resource Virtualization ◽  
Virtual Routers ◽  
Network Device

A virtual router model with a static and dynamic resource reconfiguration for future internet networking was developed. This technique allows us to create efficient virtual devices with optimal parameters (queue length, queue overflow management discipline, number of serving devices, mode of serving devices) to ensure the required level of quality of service (QoS). An analytical model of a network device with virtual routers is proposed. By means of the mentioned mathematical representation, it is possible to determine the main parameters of the virtual queue system, which are based on the first in, first out (FIFO) algorithm, in order to analyze the efficiency of network resources utilization, as well as to determine the parameters of QoS flows, for a given intensity of packets arrival at the input interface of the network element. In order to research the guaranteed level of QoS in future telecommunications networks, a simulation model of a packet router with resource virtualization was developed. This model will allow designers to choose the optimal parameters of network equipment for the organization of virtual routers, which, in contrast to the existing principle of service, will provide the necessary quality of service provision to end users in the future network. It is shown that the use of standard static network device virtualization technology is not able to fully provide a guaranteed level of QoS to all present flows in the network by the criterion of minimum delay. An approach for dynamic reconfiguration of network device resources for virtual routers has been proposed, which allows more flexible resource management at certain points in time depending on the input load. Based on the results of the study, it is shown that the dynamic virtualization of the network device provides a guaranteed level of QoS for all transmitted flows. Thus, the obtained results confirm the feasibility of using dynamic reconfiguration of network device resources to improve the quality of service for end users.

Mathematical Representation of Quality of Service (QoS) Parameters for Internet of Things (IoT)

2020 ◽  
pp. 364-376
Author(s):  
Sandesh Mahamure ◽  
Poonam N. Railkar ◽  
Parikshit N. Mahalle
Keyword(s):  
Mathematical Model ◽  
Quality Of Service ◽  
Internet Of Things ◽  
Gap Analysis ◽  
Literature Survey ◽  
Mathematical Representation ◽  
The World ◽  
Qos Parameters ◽  
The Mathematical Model

Now we are in the era of ubiquitous computing. Internet of things (IoT) is getting matured in various parts of the world. In coming few years' billions and trillions of things will be connected to the internet. To deal with these huge number of devices in a network we need to consider Quality of Service (QoS)parameters so that system operations can be performed in a smoother way. Mathematical modelling of these QoS parameters gives an idea about which factors are needs to consider while designing any IoT-enabled system at the same time it will give the performance analysis of the system before implementation. In this paper comprehensive literature survey is done to discuss various issues related to QoS and gap analysis is also done for IoT Enabled systems. This paper proposes general steps to build a mathematical model for a system. It also proposes the mathematical model for QoS parameters like reliability, communication complexities, latency and aggregation of data for IoT. To support proposed mathematical model proof of concept also given.

scholarly journals Implementing Quality of Service for the Software Defined Networking Enabled Future Internet

2014 ◽  
Author(s):  
Sachin Sharma ◽  
Dimitri Staessens ◽  
Didier Colle ◽  
David Palma ◽  
Joao Goncalves ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Software Defined Networking ◽  
Future Internet

scholarly journals FSB-DReViSeR: Flow Splitting-Based Dynamic Replacement of Virtual Service Resources for Mobile Users in Virtual Heterogeneous Networks

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Jean Frédéric Myoupo ◽  
Vianney Kengne Tchendji ◽  
Yannick Florian Yankam ◽  
Joël Casimir Tagne
Keyword(s):  
Quality Of Service ◽  
End Users ◽  
Virtual Networks ◽  
Virtual Paths ◽  
Dynamic Replacement ◽  
Service Resource ◽  
Suitable Amount ◽  
Flow Splitting ◽  
Resource Replacement

Virtual networks are sets of virtual devices that are interconnected through a physical network to provide services to end users. These services are usually heterogeneous (VOIP, VoD, streaming, etc.), exploit various amounts of resources (bandwidth, computing power, servers, etc.), and have topologies different from those of the substrate network. These variations in requirements are traditionally known as the architectural flexibility of virtual networks. Each virtual service is provided through a server called a virtual service resource. When a virtual service resource can no longer provide a good quality of service to end users due to the traffic variation generated by their mobility, two approaches are commonly implemented: provisioning the virtual network with resources or replacing the virtual service resource by migrating the service to another node that offers the most suitable amount of resource to satisfy the quality of service (QoS). In this paper, we propose a flow splitting-based dynamic virtual service resource replacement approach that allows for virtual service replacement across multiple virtual paths. Our approach is based on a graph topology that differs from those in the literature, which are based on tree topologies. The simulations performed in this study show that our approach significantly reduces the virtual service resource replacement time compared to other approaches.

scholarly journals Assuring Quality of Service by Using Openflow Protocol

2017 ◽  
Vol 9 (3) ◽  
pp. 329-333
Author(s):  
Liudas Duoba
Keyword(s):  
Quality Of Service ◽  
Software Defined Networking ◽  
New Method ◽  
Data Networks ◽  
Network Intelligence ◽  
Network Device

OpenFlow currently is the only one protocol that can implement ideas of the Software Defined Networking pioneers. The Protocol is unique because of ability to separate any network device control and data planes. All network intelligence is (logically) centralized in dedicated controllers. Objective of this article to propose a new method that enhances QoS in data networks by using OpenFlow protocol.

Managing Network Quality of Service in Current and Future Internet

2012 ◽  
pp. 179-223
Author(s):  
Mark Yampolskiy ◽  
Wolfgang Fritz ◽  
Wolfgang Hommel
Keyword(s):  
Quality Of Service ◽  
Service Management ◽  
Future Internet ◽  
Service Level ◽  
Internet Service ◽  
International Service ◽  
Traffic Characteristics ◽  
Legal Obligations ◽  
Sustained Success

In this chapter, the authors discuss the motivation, challenges, and solutions for network and Internet quality of service management. While network and Internet service providers traditionally ensured sufficient quality by simply overprovisioning their internal infrastructure, more economic solutions are required to adapt the network infrastructures and their backbones to current and upcoming traffic characteristics and quality requirements with sustained success. The chapter outlines real-world scenarios to analyze both the requirements and the related research challenges, discusses the limitations of existing solutions, and goes into the details of practitioners’ current best practices, promising research results, and the upcoming paradigm of service level management aware network connections. Special emphasis is put on the presentation of the various facets of the quality assurance problem and of the alternative solutions elaborated with respect to the technical heterogeneity, restrictive information sharing policies, and legal obligations encountered in international service provider cooperation.

Maintaining Redundancy in Peer-to-Peer Storage Systems

2010 ◽  
pp. 616-634
Author(s):  
Anwitaman Datta ◽  
Di Wu ◽  
Liu Xin ◽  
Adam Wierzbicki
Keyword(s):  
Quality Of Service ◽  
Storage Systems ◽  
End Users ◽  
Peer To Peer ◽  
Analytical Models ◽  
Storage Space ◽  
Storage Devices ◽  
Empirical Results ◽  
P2p Storage

Peer-to-Peer (P2P) storage systems leverage the combined storage capacity of a network of storage devices (peers) contributed typically by autonomous end-users as a common pool of storage space to store and share content. A major challenge in such a system comprising of autonomous participants is to guarantee quality of service in terms of persistence and availability of the stored content. This chapter focuses on the different possible design choices for maintaining redundancy in P2P storage systems, including algorithm details of maintenance mechanisms, analytical models to understand system’s dynamics, empirical results from simulation experiments as well as experiences from prototype deployments.

A Novel Model for Evaluating Optimal Parameters of Security and Quality of Service

2010 ◽  
Vol 5 (6) ◽  
Author(s):  
Jianyong Chen ◽  
Cunying Hu ◽  
Huawang Zeng
Keyword(s):  
Quality Of Service ◽  
Optimal Parameters ◽  
Novel Model

New design of Network on Chip Based on Virtual Routers

2016 ◽  
Vol 2 (1) ◽  
pp. 115 ◽  
Author(s):  
Mohamed Fehmi Chatmen ◽  
Adel Baganne ◽  
Rached Tourki
Keyword(s):  
Quality Of Service ◽  
Integrated Circuits ◽  
Network On Chip ◽  
Dimensional Network ◽  
3D Integrated Circuits ◽  
Average Latency ◽  
Improved Performance ◽  
Virtual Routers ◽  
On Chip

<p>Network is considered the most convenient way to communicate between different IP integrated into the same chip. Studies have been developed to propose networks with improved performance in terms of latency, power consumption, throughput and quality of service. Most of these networks have been designed based on the 2-dimensional network structure. Recently, with the introduction of the new structure of 3D integrated circuits (3D IC), new works have used this type of circuit to design 3 dimensions on-chip networks. The advantage brought by this new structure is to reduce the average number of hops crossed from the source to the destination, which improves the throughput and the average latency of the network.</p>

Quality of Service Based Dynamic Reconfiguration for Services Based Applications

2012 ◽  
Vol 7 (1) ◽  
pp. 153-156
Author(s):  
Yuyu Yin ◽  
Yongjian Ren
Keyword(s):  
Quality Of Service ◽  
Dynamic Reconfiguration
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